diff --git a/poetry/core/masonry/builders/builder.py b/poetry/core/masonry/builders/builder.py
index b439b4616..78ef49de4 100644
--- a/poetry/core/masonry/builders/builder.py
+++ b/poetry/core/masonry/builders/builder.py
@@ -113,7 +113,7 @@ def find_excluded_files(self):  # type: () -> Set[str]
 
             explicitely_included = set()
             for inc in self._package.include:
-                included_glob = inc['path']
+                included_glob = inc["path"]
                 for included in self._path.glob(str(included_glob)):
                     explicitely_included.add(
                         Path(included).relative_to(self._path).as_posix()
diff --git a/tests/masonry/builders/test_wheel.py b/tests/masonry/builders/test_wheel.py
index c0cc8c1ce..530680d16 100644
--- a/tests/masonry/builders/test_wheel.py
+++ b/tests/masonry/builders/test_wheel.py
@@ -96,6 +96,7 @@ def test_wheel_excluded_nested_data():
         assert "my_package/public/item1/subitem/subitemdata.txt" not in z.namelist()
         assert "my_package/public/item2/itemdata2.txt" not in z.namelist()
 
+
 def test_include_excluded_code():
     module_path = fixtures_dir / "include_excluded_code"
     poetry = Factory().create_poetry(module_path)
@@ -109,6 +110,7 @@ def test_include_excluded_code():
         assert "my_package/generated.py" in z.namelist()
         assert "lib/my_package/generated.py" not in z.namelist()
 
+
 def test_wheel_localversionlabel():
     module_path = fixtures_dir / "localversionlabel"
     project = Factory().create_poetry(module_path)
@@ -282,4 +284,3 @@ def test_default_src_with_excluded_data(mocker):
         assert "my_package/data/data1.txt" in names
         assert "my_package/data/sub_data/data2.txt" not in names
         assert "my_package/data/sub_data/data3.txt" in names
-